Few parrots anywhere combine color the way the Crimson Rosella does. Adults are a deep, saturated crimson set off by brilliant violet-blue cheeks, blue shoulders and tail, and a back of black feathers edged in red that creates a bold scalloped pattern. In the wet eucalypt forests of eastern and southeastern Australia this medium-sized parrot is a constant presence, gliding between trees on rounded wings and announcing itself with soft, bell-like whistles. Around picnic grounds and mountain lodges it can become remarkably tame, hopping close to tables and even landing on outstretched hands where feeding is tolerated.
The species is also a famous puzzle of variation. Young birds wear a patchy olive-green plumage so different from adults that they were once thought to be a separate species, and whole populations along the Murray River and in South Australia are yellow or orange rather than red. All of these forms, the Yellow Rosella and Adelaide Rosella included, are now generally treated as one variable species, Platycercus elegans, making the Crimson Rosella a living textbook example of how color evolves across a landscape.
An adult Crimson Rosella is close to unmistakable within its range: no other Australian parrot pairs a wholly crimson head and body with vivid blue cheeks. The bird is medium-sized with a long, broad blue tail, a fairly small pale grey bill, and an undulating, gliding flight low through the trees. The trickier identifications involve the green juveniles, which cause endless confusion, and the yellow and orange color forms found along the Murray River and around Adelaide. Focus on the blue cheek patch, present at every age, and the black-and-red scalloped back.
| Size | Medium parrot, about 32 to 36 cm long with a long, broad tail |
| Body | Deep, uniform crimson in red-form adults; some populations are yellow or orange |
| Cheeks | Bright violet-blue patch on the face, shown at all ages |
| Back | Black feathers boldly edged with red (or yellow), giving a scalloped look |
| Wings and tail | Deep blue shoulder patch and long blue tail, obvious in flight |
| Bill and eye | Pale bone-grey bill; dark eye with a bare grey eye-ring |
Male vs. female
Male and female Crimson Rosellas look alike in the field, both wearing the full crimson-and-blue adult plumage, which is unusual among parrots where the sexes often differ. On close inspection males average slightly larger with a broader, heavier head and bill, while females can be a touch smaller and more slender, but these differences overlap and are unreliable for a single bird. Some females show a faint pale stripe on the underside of the wing (a wing stripe), a feature usually absent in adult males, though it is easiest to judge in the hand rather than at a distance. For practical field birding, treat any full-crimson adult as unsexable by sight.
Juveniles
Juveniles are the source of most Crimson Rosella confusion. Rather than crimson, a young bird is largely dull olive-green, brightest on the back and wings, with scattered red blotches on the head, throat, and breast, and it already shows the diagnostic blue cheeks and blue tail of the adult. This green stage can last well over a year, so green and red birds are routinely seen feeding together in the same flock, sometimes leading people to think two species are present. As the bird matures it moults progressively, the green giving way to advancing patches of crimson until the full adult color is complete. In the yellow-form populations the equivalent juveniles are green fading to yellow rather than red.
The most familiar sound is a mellow, bell-like contact call, a clear two-note whistle that rises on the second note, often written as a soft cussik-cussik and carrying well through the forest. Birds keep in touch with these piping whistles as they move and feed, giving quiet, pleasant chatter that forms a constant background in mountain forests and campgrounds.
When alarmed or squabbling over food the tone changes sharply to harsh, metallic chink notes and scratchy, screeching chatter, very different from the gentle contact whistle. In flight birds often give a rapid series of ringing notes. There is no elaborate territorial song in the way a thrush sings; instead the rosella's vocabulary is a set of whistles, chinks, and chatters used for contact, alarm, and disputes.
The Crimson Rosella is native to eastern and southeastern Australia. Red-form birds range from the wet tropical uplands of far northern Queensland (the Atherton Tableland) south in a broad coastal and mountain band through New South Wales and the Australian Capital Territory into Victoria, and west to the ranges of southeastern South Australia and Kangaroo Island. Distinct yellow-form (Yellow Rosella) populations follow the Murray, Murrumbidgee, and related inland rivers, while the orange Adelaide Rosella occupies the hills around Adelaide, and the forms grade into one another where they meet.
It is strongly tied to wetter, taller forest, favoring eucalypt forests and woodlands, temperate rainforest edges, and well-treed gardens and parks, from sea level up to around 1,900 metres in the alps. The species is largely resident rather than migratory, though birds may move locally or to lower ground in winter. It has also become established beyond its native range, introduced to Norfolk Island and to parts of New Zealand.
Crimson Rosellas are broad, opportunistic feeders. The core of the diet is seeds, taken from eucalypts, wattles, and many native and introduced shrubs and grasses, supplemented heavily with fruits, berries, buds, blossoms, and nectar. They also take insects and their larvae, an important protein source especially during breeding, and will strip the seeds from thistles and other weeds.
They forage both high in the canopy and down on the ground, moving deliberately and using the bill and feet to manipulate food. In settled areas they readily visit orchards, crops, and garden plants and will come to seed feeders and offered fruit, which has helped them thrive alongside people. Around well-known picnic spots and tourist lodges some birds become bold enough to feed from the hand, though feeding wild parrots processed human food is discouraged because it harms their health.
Breeding generally runs from around September to February, timed to the southern spring and summer. Pairs nest in a tree hollow, typically a deep vertical spout high in a living or dead eucalypt, and often reuse a favored site in successive years. Rather than building a structured nest, the female prepares a bed of decayed wood dust and chips at the bottom of the hollow.
The clutch is usually three to eight rounded white eggs, incubated almost entirely by the female over roughly three weeks while the male feeds her nearby. The chicks hatch naked and helpless (altricial) and are brooded by the female early on, then fed by both parents. Young birds fledge at around five weeks and stay with the adults for some time afterward, often joining loose flocks of immatures as they slowly acquire adult color.
The Crimson Rosella is not a bird most readers can lure to a backyard unless they live within its eastern Australian range, so the real question is where and how to see one. The good news is that it is common, colorful, and often approachable in the right places.
- Visit wet eucalypt forests and mountain country in eastern Victoria, the ACT, and New South Wales, where the species is reliably common; the Dandenong Ranges near Melbourne are a classic, easy spot.
- Head to national park picnic grounds and campgrounds, such as those in the Blue Mountains, Grampians, or Namadgi, where habituated birds often feed close to visitors.
- For the striking yellow form, explore river red gum forests along the Murray and Murrumbidgee; for the orange Adelaide Rosella, try the Adelaide Hills and Mount Lofty.
- Look and listen at the forest edge in early morning, when birds are most vocal and active, feeding in flowering or seeding eucalypts and wattles.
- In their range, a well-treed garden with native shrubs and a shallow birdbath can draw them in; some visit seed feeders, though offering only natural or bird-appropriate food is best.
- Carry binoculars and patience, listen for the soft bell-like contact whistle, then scan the mid-canopy where the crimson body glows against green foliage.
- Eastern Rosella: Overlaps in range but has a red head and breast with a white cheek patch and a yellow-green body, not all crimson.
- Australian King Parrot: Larger and longer-tailed; males have a bright red head and underparts with a green back and no blue cheek patch.
Why are some Crimson Rosellas green?
The green birds are almost always juveniles. Young Crimson Rosellas start out mostly olive-green with only patches of red, and they can take more than a year to moult into the full crimson adult plumage. That is why green and red birds are so often seen feeding together in the same flock.
Are the yellow and orange rosellas a different species?
They were once treated as separate species (the Yellow Rosella and Adelaide Rosella), but they are now generally regarded as color forms of one variable species, Platycercus elegans. Where their ranges meet along the rivers and hills they interbreed and grade smoothly into one another.
How do I tell a Crimson Rosella from an Eastern Rosella?
A Crimson Rosella adult is almost entirely deep red with blue cheeks. An Eastern Rosella has a red head and breast but a white cheek patch, a yellow-green back, and a pale belly, so it looks multicolored and patchy rather than uniformly crimson.
Where is the best place to see a Crimson Rosella?
Wet forests and mountain parks in eastern Australia are ideal. The Dandenong Ranges near Melbourne, the Blue Mountains, and forested picnic grounds throughout Victoria, the ACT, and New South Wales all reliably host tame, easily seen birds.
What do Crimson Rosellas sound like?
Listen for a mellow, bell-like whistle that rises on the second note, used as a contact call as birds move and feed. When alarmed or squabbling they switch to harsh, metallic chink notes and scratchy, screeching chatter.
Is it okay to feed wild Crimson Rosellas?
Although some birds at picnic areas will feed from the hand, wildlife carers discourage feeding them processed human food such as bread or seed mixes, which can cause malnutrition and disease. If you want to attract them, native plants, natural seeds, and clean water are far better.